Sink stopple



Nov. 28, 1933. w. F. scHAcHT SINK STOPPLE Filed June 26. 1933 application is a continuation-in-part ofezmygcofi pending fapplicationhiserial No. 656,322, med February 1l, 1933 (now Patent No. 1,925,008), said stopples being designed for use primarily in ordinary kitchen sinks or the like in which the sink drain has no means for closing the drain,` same being provided merely with a strainer plate. The stopples in my said patents and application consist brieiiy of a iiexible body of soft rubber, having a wide flat rim portion to prevent curling; and have a centrally disposed knob or handle, and a knob or ring upon the rim portion whereby the edge may be raised to break the suc-v. tion under the stopple when it is desired to release the stopple.

The principal object of the present invention isto provide the upper face of the stopple with radially disposed thickened ribs, for assisting in keeping the body of the stopple from warping thereby maintaining the suction thereunder and preventing seepage of liquid past the stopple.

lOther minor objects of the invention will bek hereinafter set forth.

I will explain the invention with reference to the accompanying drawing which illustrates several practical embodiments thereof to enable others to adopt and use the same; and will summan'ze in the claims the essential features of the invention, and novel combinations of parts, for which protection is desired.

In said drawing:-

Fig. 1 is a top plan view of one form of stopple.

Fig. 2 is a section on the line 2 2, Fig. 1.

Fig. 3 is a top plan view of a modified form of stopple.

Fig. 4 is a section on the line 4-4, Fig. 3.'

Fig. 5 is a top plan view of furthermodified form of stopple.

Fig. 6 is a section on the line 6-6, Fig. 5.

The stopple illustrated in Figs. 1 2 briefly comprises a thin disk-like body portion of exible material, preferably soft molded rubber, adapted to readily conform with the contourof the surface such as the drain strainer plate D of a sink S (Fig. 2) upon which the stopple is placed, the stopple being of such diameter as to completely cover the strainer plate D. The lower face 1 of the stopple is flat. In the upper face of the stopple is molded a central circular recess 2, whereby the central portion of the stopple is made thinner than the rim portion 3. A plurality of radially molde/dintegralmvithi 'tl`1'e'diodyA 41.1:andzadapted to 1,912,312,cdatediMayzD; 1933:; andgitheepresentzpreyentmzarpinguofethe 'central pontioncofctheib stopple. The heavyirimfportiom '.oftheistopple :.160ag prevents theedgefrom'curling; thereby insuring that the stopples will effectively seal the drain. The thick rim portion 3 furthermore strengthens the periphery of the stopple, and may be provided with inner andouter annular beads 5 and 6, on its upper surface.

A pair of integral lugs 7 and 8 are molded upon diametrically opposed ribs 4 in the central recessed portion 2 of the stopple, and between the lugs '7 and 8 extends a stiff wire or rod 9 having a central semi-circular offset portion 10 forming a central handle for lifting stopple. If desired a chain or cord (not shown)l may be atached to the offsetportion l0 of the handle. The rim portion 3 has an integral lug l1 molded which the stopple may be hung up when not in use, and by which the rim of -the stopplemay be f raised to break the suction'the'reunder. The

vmolded lugs '7, 8 and 1l maybe reinforced Wit V v75.75V thereon and a ring 12 is passed therethrough by`v 5g tion 14 (Fig. 4) may be formed on the bottom of 4. This stopple also has the lug 11 adjacent the rim andthe ring 12, the lug 11 being molded at the outer end of one of the ribs 4, asshown. The recess 2 may hence be omitted as I have found that a iiexible body of uniform thickness as above describedwith respect to Figs.,5 and 6 provides a' good and efficient stopple; but by making the central portion 2 of the stopple thinner than the rim3 as in Figs. 1 and 4, a somewhat greater suction is created under the stopplekto hold the same in place upon the strainer plate D.

(ill.

When the stopple is placed in the sink it cannot t be pulled away by merely lifting the central knobs 10 or 13; but when it is desired to remove or release the stopple from the sinkthe rim may be readily raised by lifting the rings 12, thereby breaking the suction under the stopple. The stopple thus molded iseffective, strong, and ilexible, and will form a water tight closure over the sink strainerA or drain.

I claim:- 1

'1. A stopple comprising a eXible diskhaving,

a flat lower face, ribs on the upper face of the stopple adapted tolprevent warping of said disk and a handle at the center of the disk. 1

2. In a stopple as set forth in claim 1, saidh'andle comprising a pair of lugs onsaid,ribs-,1and:` a rod extending between the lug`s. 4 n K 3. A stopple comprising a flexible disk-'having' a flat lower face,` radially disposed ribs; on the.

upper face of the stopple adapted to prevent warpingixof said disk, and ahandle. at the center.v

ofthe. disk.

V4'. Inraj stopple as setforth in claimzS, said han,- dle.,comprising. a pair :of lugs ron said ribs', and a rod vextending between .the lugs.

5. Ina stopplejas set'forthV inA claim said handle comprising a knob on the disk connecting the inner ends of the ribs.

6. A stopple comprising a rubber disk having a flat lower face, radially disposed rubber ribs on the upper face of the stopple adapted to prevent warping of said disk, a handle at the center of the disk; and means on the disk for raising the Yedge thereof to break the suction under the of one of said' 'ribs adjacent the periphery of the Y 10. A stopper comprising a rubber disc of unin form.. thickness hayingl' a'. flat lower "surface,l a

handleinthe cent'eriofihe" disc, andmeansbna th'eedgeA for raising-y same to`A break the suctionunderthestopper when it isv desired-l'- torf'elease` WILLIAM.F'.4 scHAcH-IY the lstoppen f 

